The following sets of values for CV and CP of a gas has been reported by different students. The units are cal/g-mol-K. Which of these sets is most reliable?

Question

The following sets of values for CV and CP of a gas has been reported by different students. The units are cal/g-mol-K. Which of these sets is most reliable? (A)  CV=3, Cp=5  (B)  CV=4, Cp=6  (C)  CV=3, Cp=2  (D)  CV=3, Cp=4.2

Tardigrade Admin · Accepted Answer

Cp-CV=R=2⋅ (cal/gm text-mol text-K) which is correct for option (a) and . Further the ratio (Cp/CV)(=&gamma; ) should equal to some standard value corresponding to that of either, mono, di, or triatomic gases. From this point of view option (a) is correct because ( (Cp/CV) )mono=(5/3)

Q. The following sets of values for $C_{V}$ and $C_{P}$ of a gas has been reported by different students. The units are cal/g-mol-K. Which of these sets is most reliable?

$C_{V} = 3, C_{p} = 5$

$C_{V} = 4, C_{p} = 6$

$C_{V} = 3, C_{p} = 2$

$C_{V} = 3, C_{p} = 4.2$

Q. The following sets of values for CV​ and CP​ of a gas has been reported by different students. The units are cal/g-mol-K. Which of these sets is most reliable?

CV​=3,Cp​=5

CV​=4,Cp​=6

CV​=3,Cp​=2

CV​=3,Cp​=4.2

Cp​−CV​=R=2⋅gm-mol-Kcal​ which is correct for option (a) and . Further the ratio CV​Cp​​(=γ) should equal to some standard value corresponding to that of either, mono, di, or triatomic gases. From this point of view option (a) is correct because (CV​Cp​​)mono​=35​

Q. The following sets of values for $C_{V}$ and $C_{P}$ of a gas has been reported by different students. The units are cal/g-mol-K. Which of these sets is most reliable?

$C_{V} = 3, C_{p} = 5$

$C_{V} = 4, C_{p} = 6$

$C_{V} = 3, C_{p} = 2$

$C_{V} = 3, C_{p} = 4.2$